Lock screw device



March 28, 1939. M. YANEsoN 2,152,231

` vLOCK scREw DEVICE Filed Deo. 15, 1957 A 3' lll/ll Patented Mar. 28, l1939` UNITED vSTATES PATENT OFFICE LOCK SCREW DEVICE Michael Yaneson, Newark, N. J. v Application December 15, 1937, Serial No. 179,846 4 claims.' (c1. :z5-s) Finally, Fig. 11 is another view of the same form of the invention partly in section to disclose details of structure.

This invention relates to screw locks or locking means with particular reference to the type in which a locking member is provided with a special locking head adapted tokpass through and cooperate with a plate having an aperture of suitable form. y

The main object of my invention is to Vprovide a locking means to replace screws and bolts in various structures in which the locking member is automatically locked in final effective and useful position upon being forcibly turned only part of a revolution.

Another object is to have locking means of the character indicated which can be made at a low figure and is simple and durable in construction. A further important object is to have such a locking means which when once locked in place, will not rattle loose from the effects of jarring or vibration.

Yet another object is to have a locking means of this type which can beremoved at will, but

when locked in place is positively retained and very strong.

fully as the specior lock screw `embodying the invention in a practical form and used to hold two'members to-I gether which are shown in section.

Fig. 2 isa view of the screw member alone of 5 Fig. 1.

Fig. 3 is another view of the same as partly rotated to a different position.

Fig. 4 is another view of the same embodiment of the invention as seen from below in Fig'. 1.

Figp5 is a similar view of -the plate member alone of Figs. 1 and 2.

Fig. 6 is a side elevation Fig. 5.

Fig. 'I is a plan rview of a modification of the plate of Figs. l, 4, 5 and 6.

Fig. 8 is a section of the same on Fig. '1.

Fig. 9 is a fragmentary view of a door or window, etc., with part of the frame, etc., against which it abuts, a modification of the invention being applied to prevent rattling and vibration.

Fig. 10 is also a fragmentary view of similar parts with another modification of the lock screw, etc., embodying thepresent invention used for of the plate shown in line 8-8 in the same purpose.

Other objects and the several advantages of Throughout the views,

the same reference indicia denote the same or like parts.

In automobile chassis and bodies,

airplane fuseaages and other structures, as well as in radio cabinets and other cabinets and mechanical devices, it is often desirable to have some readily applied securing and locking means which can be put into place instantly and yet driver or wrench for any great out using a screw length of time or for many securely withturns of the screw involved. It is of course necessary to have absolutely positive locking and security effected without danger of broken threads or loss of the screw or loosening of the same by vibration.

Hence, in the practice of my invention, if a pair of boards, pieces of metal or other structural members indicated at I and 2 are intended to be secured together,

serted through sai a, locking screw 3 is ind members after the same have been appropriately drilled and one member preferably countersunk to accommodate the screw head l. Of course,

`may be cylindrical the head of the 'locking screw as indicated at Fig. 2, hexagonal, oval or round, or in fact, any desired )shape to suit the user, and may even into a socket.

However, beneath a retaining yoke 5,

be formed structural member 2 is placed preferably of metal and having an aperture therethrough of special form and through which a reduced portion 6 of the locking screw extends. practically cylindrical main body 3 of thev screw, the reduced portion is verse depression or This reduced portion is and concentric with the and, upon the end of fixed a head 1 formed shaped or helical blades 8, 8 least the same diameter as body 3, and terminating in a 9, 9. In order to cooperate 9-9 on the head 1, a transgroove i0 may be formed on the yoke, s o that the `shoulders will tend to seat therein when through the yoke and the screw fthe head has been passed given a partial turn. The shoulders on said head are brought to a positive stop in a well seated position by a pair of opposite fixed projections or stops Il, il at the sides of groove i0. If dired, the ends position,

be slotted as at 5', 5 to acwhich are intended to retain the head of such a screw being indicated at I3'.

The yoke, in or der to make the mentioned 2 aisaasi seating of the two shoulders effective. is made the yoke plate l1 it is of course but necessary to substantially in the form of a spring by having partly rotate knob 84 in a counterolockwise dithe ends bent at I2. I2 and terminating in a pair rection similar to the manipulation of the screw of feet Il, I l for supporting the yoke and spacing of Figures 1 to 4 and the screw head will then g the main portion thereof away from the member pass through yoke plate 51 into the hole 5I in 5 2. The immediate result is that the yoke is member 55. A spring 62, coiled about shaft il partly resilient and compensates for a certain exterior of plate 60, tends to expand and draw range of variations in the thickness of the structhe enlarged portion 65 outwardly through hole tural members which are to be secured together. 56, until said portion meets the plate ..and it is l The aperture i-n the yoke, generally indicated obvious that in this position the enlarged portion l0 at I4 has the arcuate portions I5. I5 which t 65 and the screw head 89 are entirely contained upon the reduced portion I of the locking screw, vwithin the hole es in member 53 without any eonwhile opposite elongated portions le, le provide nection with yoke plate 61 or frame 59. When clearances for the blades 8, 8 of the head 1 of the parts are thus disconnected and idle, it is u the screw which allow said head to poss through naturally possible to shift the position of the winl the yoke plate 5. dow or door with respect to the frame 59, while The procedure of applying or removing the on the other hand, when it is desired to secure looking Screw is very -Simple- If the lllelllbers the same together in order to lock the window or I and 2 are brought together and 'the Yoke memdoor in place so that the same cannot rattle, it is n' ber 5 then held in position temporarily by the 4only necessary to push the knob 5I inwardly until 20 hand, with the feet I3, I3 resting against the screw head 69 engages in the yoke plate 81, when exposed side of member 2 end the. overture s portioioioekwise rotation ofthe knobwiii cause Il registering with the hole l .through both 'the screw head to climb through yoke plate 51, structural members, it is but necessary to introand become seated against the sione 1| in the I duce the screw head l and Shank 3 through mem' groove 12. In this position the door or window UI 25 bersv I and 2 and only initially introduce head ls securely held against the freine u in rigid 1 alone into aperture I4, when it will be possible manner. The shaft 53 has n reduced portion beto cause the head t0 Climb through Sald aperture tween the enlarged portion 65 and screw head Il by merely giving the screw e partiel turn The' similar to the reduced portion s shown in Figures u head 1 will come to rest oelust Stops ll l' 2 and 3, although this does not appear in Figure 30 with shoulders 9, 9 seated in groove l0, the yoke l0, but naturally must be present in order to alplate l springing Slightly outward away from iow for the screw heed and the shaft to properly member 2 .by tending to straighten and main' engage with the yoke plate l1. taining the Darts ln assembled Telatloh by being A Amodification of the foregoing is shown in u under compression, and eohhhel by head l Fig. 10, wherein a door or window I0 may be held 35 Removal is accomplished by giving the Screw a against a frame or the like 4I. Upon the dooi part turn in a reverse direction, freeing it from or similar member n is a plate u cured by yoke plate 5 by oousing blades a 3 t0 l'eglstel' Wlth means of screws Il or the like, while exteriorly of the elongated clearances le, le of the aperture' seid piste is e knob u 'secured to a shaft u hsvwhen the yoke Will Spring free and the Screw mh? ing an enlarged portion 48 capablev of being 40 be directly withdrawn. moved longitudinally in the hole 41, in said mem Modlncatlons Of both lOCklng Screw and yoke ber o and normally extending a screw plate are'of course possibley es well es diiierent threaded eoiiar as screwed into the open end of applications thereof. For example, in Figs. 7 and a cavity or hole I9 in the frame 4I. For the pura 8, the yoke plate 'l has the Channel 0l groove' pose of screwing this collar into position a span- 45 Il', the stops Il', ll' end aperture u' eofle ner wrench or special screw driver engaging in sponding to Similar Ports upon Yoke 5, but uPOh slots 50 may be used, but any means known in all four sides, the edges are bent down es at la the art may of course be employed to set said is separated by corner slots I9, I9 and tennlthreaded eoiier in piace. As also shown in Pig- 0 nating in feet 20. This form iS Stiller and more ure 11, more clearly, the collar Il has a concave 5o condensed than yoke plate 5, but cooperates with seat portion into which a spring 54 extends the screw in thev same meunel'- while upon the other end of this spring is mount- In Fig. 9, a WihdoW'Ol door 5' l5 Partly Shown ed a yoke plate 53 provided with stops 52 similar abutting against a portion of a frame 59 and is to stops of Fig. 1. The inner end of the shaft 55 intended to be held Secure .against fattllu' and 45 above the enlarged portion is provided with a 55 vibration due to wind or other causes and for this screw head 5| capable of engaging egninsi; stops purpose the door o1' Window lS Provided With a 52 when seated in the channel or groove 51 in the plate 60 secured by means of screws 8| or nails, yoke 53 etc., and thl'ugh which thelshaft P85865, upon n 'The yoke is of course als() provided 1n this me do the outer end of which a knob 6I is secured for with an aperture similar to i4 in Figure 5, while no turning said shaft 83 which carriesv an enlarged shaft 45 beyond he enlarged portion 43 is likeportion es capable of being drawn through the wise provided with o reduced portion se immehole ss in member 58. This enlarged portion or diate1y beneath or within the head si. The collar 85 upon the shaft 53 normally abuts against spring 54 is riveted or otherwise secured to the o; a yoke plate 61 Secured by means of screws or the yoke 53 and to the threaded collar 4s so that 1oss 65 like, as at 5U, to thejfrarne 59, while Said frame oi' the yoke is prevented. When the window or has a hollow portion 10 for accommodating the door 40 is intended to be held against frame 4I screw head 69 upon they inner end of shaft 63, in n manner to prevent rattling or shaking, the while the plate 61 naturally has an aperture simknob u is pushed inwardly a sumcient distance 70 ilar to the aperture I4 of Fig. 5 and has a transto cause the screw head 5I to initially enter the 7o verse groove or seat 'I2 cooperating with stops 1I aperture in yoke 53 when a partial clockwise rosimilar to stops I I in Fig. 1 in orderto provide tation of the knob will cause the screw head to va inal seated position of the screw head in the pass through yoke 53 and become seated against cavity 10. the stops 52 in groove 51. The spring 54 nat- In order to withdraw the screw head 69 from urally takes the strain by compression so as to 7;,

retain the window or door 4i' in contact with frame 4I. A partial rotation o! knob 44 in the reverse direction will release screw head ll lfrom yoke 53 so that it will'pass downwardly through lthe yoke and with the enlarged portion 48, will be withdrawn into hole 41 in member 4l so that this vrne'xnber may be wholly disconnected l'from the` frame 4| in order to allow relative movementV of these members with respect to each other. v p The invention may beused for fastening such structures as chairs in theaters. schools, ships and railroad cars and obviously other details and modiilcatlons oi the invention may of course be used, and the invention can be applied notonly to cabinets., automobile Vbodies, airplane fusedoors and windows but to other devices' lages, y

and various structures as already intimated among the objects ofthe invention.v Manifest- 1y, variations may be resorted to and features used without departing i from the scope ofthe:

pending claims. l

Variations may of course be resorted to and features used without others. t l n Hence, having now fully described my invention, -I claim:

l. In a locking ,screw adapted to cooperate with an apertured locking plate havinga transverse groove; and including a shank portionsurmounted by `a head atone end, the'feature comprising a reduced portion projecting axially from the other end of said shank portion and serving as bearing means in the apertureoi the locking plate when inserted therein, and 'an integral symmetrical screw means forming a ri'gld pro- Jection uponthe end of said reduced portion and adapted to Vextend entirely through said locking plate in assembled relation fof the screw and plate. 1 v

rtegral screw head 2. A lockingl screw according to claim 1, wherein the integral screw-jmeans upon the end oi the reduced portion is a rigid head extending radially to two opposite` sides as a volute blade .and having a-greater width than the diameter of said reduced portion so as to have shoulders f formed upon vthe inner endsof said head which are adapted'to seat in, and cooperate in locking engagement withthe groove in the locking plate.

3. A locking screw accordingv to claim 1,

`wherein theintegral screw means upon the end `of the reduced portion is av relatively thin rigid head extending radially to two opposite'wsides inA `the 4form of althin-volute blade and having a greater'diaxneter than that of said reduced portion so (as to have shoulders formed upon the v inner ends `of said'head which are adapted to seat in, and cooperate in locking engagement with, the groove in the locking plate. M

4. In'locking screw.. means having a resilient y apertured locking' plate with a transverse groove and a locking screw adapted to cooperate with t said locking plate consisting cfa shank portion surmounted by a head at one end, the feature comprising' a reduced portion projecting axially from the other end of said shank portion and serving as bearing means in theV aperture of the locking plate when inserted therein, .and an inrigidly projecting vfrom the end of saidreduced portion in the form of -a volute plate' extending radially in two oppositev directions, said head having a greater diameter than'that of .the reduced portion so as to present shoulders upon the inner end thereof capable of cooperating with and seating `in the groove of 35 the locking plate when assembled therewith.

MICHAEL YANEsoN. 

